divergent plate boundaries

Or mid-ocean ridges and therefore ocean-floor spreading at divergent plate boundaries.

One of these divergent plate boundaries fails (see aulacogen) and the other two continue spreading to form an ocean.

Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges.

Most divergent plate boundaries are at the bottom of the oceans, therefore most volcanic activity is submarine, forming new seafloor.

Divergent plate boundaries.

Divergent plate boundaries are zones of active extension as the crust newly formed at the mid-ocean ridge system becomes involved in the opening process.

Detachment faults have been found on the sea floor close to divergent plate boundaries characterised by a limited supply of upwelling magma.

Volcanoes located at convergent plate boundaries emit more water vapor and chlorine than volcanoes at hot spots or divergent plate boundaries.

Mathematical analysis shows that volcanic spreading operates on volcanoes at a wide range of scales and is theoretically similar to the larger-scale rifting that occurs at mid-ocean ridges (divergent plate boundaries).

Other current examples of divergent plate boundaries within continental crust on Earth include the East African Rift, West Antarctic Rift System, and the Rio Grande Rift.

The East African Rift System is of this type and its interpretation as an incipient site of plate rupture is further supported by its continuity with the divergent plate boundaries of the Red Sea and Gulf of Aden.